LUXUS AUDIO AMB2050DR - Class D 2x50 Bluetooth 4.0 amplifier with autoswitch

AMB2050DR 2x50W audio amplifier board with Bluetooth module. It has a perfect class D architecture (based on TPA3116D2) and each channel has a power of 50W. Both channels are capable of outputting rated power simultaneously and continuously. This board can be powered by any DC10V-24V power supply. It can be used to drive 4 or 8Ω passive speakers. AMB2050DR can also be connected with our external audio volume control board. It is possible to adjust the audio volume by turning the knob of the regulator.

It is perfect for your Hi-Fi application. You may want to pair a mobile phone or computer (etc.). Power the amplifier board. Use your phone or PC (etc.). A PIN is not required to pair it with the Bluetooth source and listen to music.

AMB2050DR can auto detect Aux / Line input in audio input. The Bluetooth audio source has a higher priority. When the Bluetooth audio is paused or the bluetooth is disconnected the amplifier will switch the Aux in / Line input.

Multiple AMB2050DR boards can be linked together to become a multi-channel amplification system. The audio out port can also be connected with a subwoofer amplifier board.

BVC Port: The BVC port can be connected to our audio volume controller to control the Bluetooth audio volume.

Parameters Test conditions Values

Maximum current 100 W @ 4 Ohm 5.29 A

Supply Voltages - 10-24 V

Efficiency 50 W @ 4 Ohm 87-92%

Idle Power

SD Floating, FAN ON

SD Floating, FAN OFF

1.3-2.5 W

0.1-0.3 W

Swhitching frequency SD Floating 394 kHz

Standby power SD connected to GND, FAN OFF 1-3 W

Input sensitivity (RMS) @ 4 Ω, 500 W, 1 KHz 808 mV

Input impedance - 22 KΩ

Gain - 24-26 dB

Minimum load impedance - 3.2 Ω

Power output

36 W @ 4 Ω THD + N 1%

50 W @ 4 Ω THD + N 10%

Bandwidth @ ± 3dB @ 4 Ω 20-20K Hz

THD

0.0299% @ 4 Ω, 1W, 1KHz

0.073% @ 4 Ω, 10W, 1KHz

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Other Features AMB2050DR card

Specific Parameters

Chip TPA3116D2

Dimensions 9.5 x 6.5 cm.

Power 2 x 50W

Amplifier Class D

Volume control Optional

Short circuit protection Yes

Overtemperature protection Yes

Bluetooth 4.0